Fix maven badges in READMEs (#1218)

Author: mziccard

README.md

@@ -5,7 +5,7 @@ Java idiomatic client for [Google Cloud Platform][cloud-platform] services.
 
 [![Build Status](https://travis-ci.org/GoogleCloudPlatform/google-cloud-java.svg?branch=master)](https://travis-ci.org/GoogleCloudPlatform/google-cloud-java)
 [![Coverage Status](https://coveralls.io/repos/GoogleCloudPlatform/google-cloud-java/badge.svg?branch=master)](https://coveralls.io/r/GoogleCloudPlatform/google-cloud-java?branch=master)
-[![Maven](https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-java.svg)]( https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-java.svg)
+[![Maven](https://img.shields.io/maven-central/v/com.google.cloud/google-cloud.svg)]( https://img.shields.io/maven-central/v/com.google.cloud/google-cloud.svg)
 [![Codacy Badge](https://api.codacy.com/project/badge/grade/9da006ad7c3a4fe1abd142e77c003917)](https://www.codacy.com/app/mziccard/google-cloud-java)
 [![Dependency Status](https://www.versioneye.com/user/projects/56bd8ee72a29ed002d2b0969/badge.svg?style=flat)](https://www.versioneye.com/user/projects/56bd8ee72a29ed002d2b0969)
 

google-cloud-contrib/README.md

@@ -5,7 +5,7 @@ Packages that provide higher-level abstraction/functionality for common Google C
 
 [![Build Status](https://travis-ci.org/GoogleCloudPlatform/google-cloud-java.svg?branch=master)](https://travis-ci.org/GoogleCloudPlatform/google-cloud-java)
 [![Coverage Status](https://coveralls.io/repos/GoogleCloudPlatform/google-cloud-java/badge.svg?branch=master)](https://coveralls.io/r/GoogleCloudPlatform/google-cloud-java?branch=master)
-[![Maven](https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-bigquery.svg)]( https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-bigquery.svg)
+[![Maven](https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-contrib.svg)]( https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-contrib.svg)
 [![Codacy Badge](https://api.codacy.com/project/badge/grade/9da006ad7c3a4fe1abd142e77c003917)](https://www.codacy.com/app/mziccard/google-cloud-java)
 [![Dependency Status](https://www.versioneye.com/user/projects/56bd8ee72a29ed002d2b0969/badge.svg?style=flat)](https://www.versioneye.com/user/projects/56bd8ee72a29ed002d2b0969)
 

google-cloud-logging/README.md

@@ -5,7 +5,7 @@ Java idiomatic client for [Stackdriver Logging][stackdriver-logging].
 
 [![Build Status](https://travis-ci.org/GoogleCloudPlatform/google-cloud-java.svg?branch=master)](https://travis-ci.org/GoogleCloudPlatform/google-cloud-java)
 [![Coverage Status](https://coveralls.io/repos/GoogleCloudPlatform/google-cloud-java/badge.svg?branch=master)](https://coveralls.io/r/GoogleCloudPlatform/google-cloud-java?branch=master)
-[![Maven](https://img.shields.io/maven-central/v/com.google.gcloud/google-cloud-logging.svg)]( https://img.shields.io/maven-central/v/com.google.gcloud/google-cloud-logging.svg)
+[![Maven](https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-logging.svg)]( https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-logging.svg)
 [![Codacy Badge](https://api.codacy.com/project/badge/grade/9da006ad7c3a4fe1abd142e77c003917)](https://www.codacy.com/app/mziccard/google-cloud-java)
 [![Dependency Status](https://www.versioneye.com/user/projects/56bd8ee72a29ed002d2b0969/badge.svg?style=flat)](https://www.versioneye.com/user/projects/56bd8ee72a29ed002d2b0969)
 

google-cloud/README.md

@@ -5,7 +5,7 @@ Java idiomatic client for [Google Cloud Platform][cloud-platform] services.
 
 [![Build Status](https://travis-ci.org/GoogleCloudPlatform/google-cloud-java.svg?branch=master)](https://travis-ci.org/GoogleCloudPlatform/google-cloud-java)
 [![Coverage Status](https://coveralls.io/repos/GoogleCloudPlatform/google-cloud-java/badge.svg?branch=master)](https://coveralls.io/r/GoogleCloudPlatform/google-cloud-java?branch=master)
-[![Maven](https://img.shields.io/maven-central/v/com.google.cloud/google-cloud.svg)]( https://img.shields.io/maven-central/v/com.google.cloud/google-cloud.svg)
+[![Maven](https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-core.svg)]( https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-core.svg)
 [![Codacy Badge](https://api.codacy.com/project/badge/grade/9da006ad7c3a4fe1abd142e77c003917)](https://www.codacy.com/app/mziccard/google-cloud-java)
 [![Dependency Status](https://www.versioneye.com/user/projects/56bd8ee72a29ed002d2b0969/badge.svg?style=flat)](https://www.versioneye.com/user/projects/56bd8ee72a29ed002d2b0969)